I have a problem on my site, I had the help of a forum member who gave me a jquery code, I put it to run on my site, but I have a problem with it, the warning that should be generated does not appear, Can someone help me? 
#topo {
background:url(../imagens/topo2etrelas2.png);
border-left:1px solid #000;
border-right:1px solid #000;
position:inherit;
width:1024px;
height:190px;
margin:auto;
}
#fundoinicial {
background: #FFF;
width: 1024px;
height: 500px;
margin: auto;
border-right: 1px solid #000;
border-left: 1px solid #000;
}
#mapa {
position:absolute;
width: 660px;
top:250px;
left: 181px;
}
#lugares {
position: absolute;
width: 250px;
height: 250px;
top: 500px;
left: 851px;
}
#cep label{
font-family: Arial, Helvetica, sans-serif;
font-size: 14px;
font-weight: bold;
position: absolute;
height: 20px;
top: 362px;
left: 780px;
}
#cep button{
font-family: Arial, Helvetica, sans-serif;
position: absolute;
margin: auto;
height: 21px;
width: 71px;
top: 358px;
left: 1028px;
padding: 0px 3px;
background: #60365E;
border-bottom: none;
color: #FFF;
border-radius:10px;
}
#cep input{
position: absolute;
width: 112px;
top: 359px;
left: 911px;
height: 15px;
border-radius:10px;
}
#cep p1{
font-family: Arial, Helvetica, sans-serif;
font-size: 10px;
position: absolute;
width: 109px;
top: 388px;
left: 854px;
}
#menufundo {
background:#60365e;
border:1px solid #000;
position:relative;
width:1024px;
height:28px;
margin:auto;
}
#ul li a{
font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
font-style:normal;
list-style-type:none;
display: inline;
font-size:19px;
line-height:0px;
padding:10px;
margin:4px 0 0 52px;
color:#FFF;
text-decoration:none;
float:left;
}
#ul li a:hover{
text-shadow:0px 0px 0px black,
0px 0px 0px black,
0px 0px 0px black,
0px 0px 0px black;
font-size:19px;
color:black;
}
.rodape {
background: url(../imagens/rodape.png);
margin: auto;
position:absolute;
width: 1056px;
height: 99px;
left: 132px;
top: 704px;
}
h1 a{
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
font-size: 19px;
color: #FFF;
text-decoration: none;
text-shadow: 1px 1px black;
position: absolute;
left: 175px;
top: 716px;
}
p a{
font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
font-size: 15px;
color: #FFF;
text-decoration: none;
text-shadow: 1px 1px black;
position: absolute;
left: 175px;
top: 743px;
}
.facebook{
width: 32px;
right: 32px;
position: absolute;
top: 25px;
left: 515px;
opacity: 0.5;
filter: alpha(opacity=50);
}
.facebook:hover {
opacity: 1.0;
filter: alpha(opacity=100); /* For IE8 and earlier */
}
.trabalhe {
font-family:"Trebuchet MS", Arial, Helvetica, sans-serif;
font-size: 19px;
color: #FFF;
text-decoration: none;
text-shadow: 1px 1px black;
position: absolute;
left: 986px;
top: 729px;
width: 159px;
}
.email {
font-family: "Trebuchet MS", Arial, Helvetica, sans-serif;
font-size: 15px;
color: #FFF;
text-decoration: none;
text-shadow: 1px 1px black;
position: absolute;
margin-top: 20px;
left: 987px;
top: 732px;
}<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Alfatec</title>
<link rel="shortcut icon" href="imagens/ico.png" type="imagem/x-png" />
<link href="css/reset.css" rel="stylesheet" type="text/css" />
<link href="css/estilocobertura.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="jquery/jquery-migrate-3.0.0.min.js" ></script>
<style type="text/css">
body {
background-image: url(imagens/projeto/imagens/fundo.jpg);
}
</style>
<script>
$(document).ready(function(){
var ceps = ['88000-000', '99000-000'], //array com os ceps válidos
aviso = $('p');
$('button').on('click', function(){ //função para quando clicar no botão
cepDigitado = $('#cep').val(); //pega o valor do cep digitado
aviso.html(''); //limpa o aviso
if (ceps.indexOf(cepDigitado) > -1) { //verifica se o cep é válido
aviso.html('CEP Válido!');
} else {
aviso.html('CEP Inválido!');
}
});
});
</script>
</head>
<body>
<div id="topo"></div><!--div final topo-->
<div id="menufundo">
<nav id="ul">
<ul>
<li><a href="index.html" title="Página Inicial">Página Inicial</a></li>
<li><a href="quem_somos.html" title="Quem Somos">Quem Somos</a></li>
<li><a href="cobertura.html" title="Áreas de Cobertura">Áreas de Cobertura</a></li>
<li><a href="servicos.html" title="Serviços">Serviços</a></li>
<li><a href="fale_conosco.html" title="Fale Conosco">Fale Conosco</a></li>
</ul>
</nav>
</div>
<div id ="fundoinicial">
<div id="mapa">
<img src="imagens/mapa.jpg" />
</div>
<div id="lugares">
<img src="imagens/lugares.jpg" />
</div>
</div>
<div id="cep">
<label>Consulte Seu CEP:</label>
<input type="text" id="cep" />
<button>Pesquisar</button>
<p></p>
</div>
</div>
<div class="rodape">
<a href="https://www.facebook.com/Alfatec-Autorizada-Electrolux-1737242946511224/" title="Facebook" target="_blank">
<img id= "facebook" src="imagens/facebook-logo (2).png" alt="FaceBook" width="24" class="facebook" >
</a>
</div>
<h1><a href="maps" target="_blank" title="Abrir Mapa">Localização</a></h1>
<p><a href="maps" target="_blank" title="Abrir Mapa">R. Profᵃ José Azevedo Minhoto, 206<br />
Osasco - SP, 06080-125</a></p2>
<div class="trabalhe" > <h2>Trabalhe Conosco</h2></div>
<div class="email" > <p>[email protected]</p></div>
</body>
</html>